Re: Rarity and Pricing

[quadrajet1@aol.com (Quadrajet1)]

>}I don't know how many, if any, of the Rev 1-5's were sold, and I don't know
>}if Apple actually ever sold any ]['s with 4K RAM chips. But when I started
>}with my ][+ in 1980 the Rev.6 ]['s were quite common.

  Several revisions existed in design only.  The only revisions to make it to
the market were Rev 0,1,4 and 6.  RFI Versions were 7, C and D.  I am sure I am
missing one, but it's late, and my mind isn't working!  I actually have 3
jumper blocks imprinted 16K-4K-4K.  Gotta be rare, these 3 are the only ones I
have ever seen.


>I'm pretty sure my ][+ had the jumper blocks.  The Apple II Reference
>manual refers only to Rev 0 and Rev 1 boards; I don't know if these
>correspond to your numbers.
>
>(FWIW, the number in the rear left corner of my board was in the
>8000s, but I don't remember exactly what it was.  The board numbered
>7907 is pictured in the manual and it was a Revision 1 board not used
>for a II+, my board looked the same except the D8/D0 ROM locations
>were filled)

  The 7907 and 8000 number you see written in marker is a manufacture date
code.  7907 would be 7th week of 1979.   The D0/D8 ROM sockets were filled on a
][+, but not on a ][.  The D0 on a ][ could take a "Programmers Aid" ROM if I
recall correctly.  P/N 341-0016.

  The Rev 0 motherboards are VERY rare, and last one I sold in a case with S/N
0847 sold for $700 to a guy in Tokyo.


Raymond